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Finding the Third Proportional to 402.19 and 849.94

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Solution

The third proportional to 402.19 and 849.94 is: 1,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.19 : 849.94 = 849.94 : x
  2. Step 2: Convert to fraction form
    402.19/849.94 = 849.94/x
  3. Step 3: Cross multiply
    402.19x = 849.94 × 849.94
  4. Step 4: Simplify right side
    402.19x = 722,393.75
  5. Step 5: Solve for x
    x = 722,393.75/402.19
  6. Step 6: Final answer
    x = 1,796.16

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.